Adjustable options for PCPs; do you change them?

I use my hammer spring adjuster on my crown 25 cal. I have the regulator up to 140 bar and hammer spring adjuster to max. It’s shooting the 34 grain jsb at 850 fps. That’s 54 fpe. When I want to shoot the 25.4 grain jsb I put the hammer spring on 4 shooting around 890 fps. I get 50 shot with 34 grains and 60 plus with 25.4 grain. 
 
"zeus"Hola, tengo una aerodinámica en .25,
Utilizo dos poderes de los 3 que tiene, en un uso jsb king y en el otro jsb king heavy.
Tengo una curva para cada uno y los utilizo de acuerdo con el trabajo que voy a hacer. No cambio nada en el regulador, debo decir que el cambio de potencia es sorprendentemente preciso.
un saludo
Tienes un link para ese fusil? No lo conozco, de donde proviene? 
 
If you don’t know Spanish 

quote = "zeus"] Hi, I have an aerodynamic in .25, I use two powers of the 3 that it has, in one use jsb king and in the other jsb king heavy. I have a curve for each one and I use them according to the work I'm going to do. I do not change anything in the regulator, I must say that the power change is surprisingly accurate. greetings [/ quote] Do you have a link for that rifle? I do not know it, where does it come from?
 
so sorry, my english it´s low,
i use de google translator, sorri for this
this is my gun
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